Home / 101,186.88-151,698.24-90,115.08

Finding the Fourth Proportional to 101,186.88, 151,698.24 and 90,115.08

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Solution

The fourth proportional to 101,186.88, 151,698.24 and 90,115.08 is: 135,099.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,186.88 : 151,698.24 = 90,115.08 : x
  2. Step 2: Convert to fraction form
    101,186.88/151,698.24 = 90,115.08/x
  3. Step 3: Cross multiply
    101,186.88x = 151,698.24 × 90,115.08
  4. Step 4: Simplify right side
    101,186.88x = 13,670,299,033.46
  5. Step 5: Solve for x
    x = 13,670,299,033.46/101,186.88
  6. Step 6: Final answer
    x = 135,099.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.